How to fix Outlook error 0x8004210a – Easy guidelines

Nothing can be more frustrating than getting Outlook errors while you are trying to send some important mails from your account and suddenly some unexpected error message get displayed on the screen. Outlook error 0x8004210a is one of such common Outlook error that Outlook users may receive while sending and receiving of emails from their Outlook account . Outlook error 0x8004210a mostly occurs if you are using POP3 email account, the error appears as :

“Task ‘smtp server name – Sending and Receiving’ reported error (0x8004210A): ‘The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).”

Above error make Outlook users completely unable to send and receive emails from their account and interrupt normal Outlook operations,. Sometimes it results in critical issues like inaccessibility of data stored in PST files.


Outlook error 0x8004210a may appear on the system due to following reasons :

  • Improper Outlook settings
  • Damaged Outlook profile
  • Incorrect settings in the firewall application
  • Outlook not properly installed
  • Problem in the POP 3 email server

To fix Outlook error 0x8004210a in Outlook check that your internet connection is working well, Firewall is configured correctly, Anti-virus program is correctly configured,. One of the main reason for the error is damaged PST file in Outlook

Repair corrupt PST file in Outlook to fix Outlook error 0x8004210a . Outlook provides an inbuilt tool called scanpst.exe to repair corrupt PST file in Outlook. Though it is an effective tool but yet in some situations it may fail to fix PST corruption problems and thus users need to use third party tool to repair damaged PST.